US10605199B2 - Cylinder with integrated locking - Google Patents

Cylinder with integrated locking Download PDF

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Publication number
US10605199B2
US10605199B2 US16/491,114 US201816491114A US10605199B2 US 10605199 B2 US10605199 B2 US 10605199B2 US 201816491114 A US201816491114 A US 201816491114A US 10605199 B2 US10605199 B2 US 10605199B2
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Prior art keywords
sleeve
pawl
screw
actuator
nut
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Active
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US16/491,114
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English (en)
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US20200018259A1 (en
Inventor
Mickael Werquin
Julien HAUTECOEUR
Christophe Bastide
Pascal Omnes
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Safran Electronics and Defense SAS
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Safran Electronics and Defense SAS
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Assigned to SAFRAN ELECTRONICS & DEFENSE reassignment SAFRAN ELECTRONICS & DEFENSE ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: BASTIDE, Christophe, HAUTECOEUR, Julien, OMNES, Pascal, WERQUIN, Mickael
Assigned to SAFRAN ELECTRONICS & DEFENSE reassignment SAFRAN ELECTRONICS & DEFENSE CORRECTIVE ASSIGNMENT TO CORRECT THE ASSIGNEE'S STREET ADDRESS PREVIOUSLY RECORDED AT REEL: 050295 FRAME: 0079. ASSIGNOR(S) HEREBY CONFIRMS THE ASSIGNMENT . Assignors: BASTIDE, Christophe, HAUTECOEUR, Julien, OMNES, Pascal, WERQUIN, Mickael
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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02K—JET-PROPULSION PLANTS
    • F02K1/00—Plants characterised by the form or arrangement of the jet pipe or nozzle; Jet pipes or nozzles peculiar thereto
    • F02K1/54—Nozzles having means for reversing jet thrust
    • F02K1/76—Control or regulation of thrust reversers
    • F02K1/763—Control or regulation of thrust reversers with actuating systems or actuating devices; Arrangement of actuators for thrust reversers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H25/00—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms
    • F16H25/18—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms for conveying or interconverting oscillating or reciprocating motions
    • F16H25/20—Screw mechanisms
    • F16H25/24—Elements essential to such mechanisms, e.g. screws, nuts
    • F16H25/2454—Brakes; Rotational locks
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02K—JET-PROPULSION PLANTS
    • F02K1/00—Plants characterised by the form or arrangement of the jet pipe or nozzle; Jet pipes or nozzles peculiar thereto
    • F02K1/54—Nozzles having means for reversing jet thrust
    • F02K1/76—Control or regulation of thrust reversers
    • F02K1/766—Control or regulation of thrust reversers with blocking systems or locking devices; Arrangement of locking devices for thrust reversers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
    • F15B15/20—Other details, e.g. assembly with regulating devices
    • F15B15/26—Locking mechanisms
    • F15B15/261—Locking mechanisms using positive interengagement, e.g. balls and grooves, for locking in the end positions
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
    • F15B15/08—Characterised by the construction of the motor unit
    • F15B15/14—Characterised by the construction of the motor unit of the straight-cylinder type
    • F15B2015/1495—Characterised by the construction of the motor unit of the straight-cylinder type with screw mechanism attached to the piston
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D2121/00—Type of actuator operation force
    • F16D2121/18—Electric or magnetic
    • F16D2121/20—Electric or magnetic using electromagnets
    • F16D2121/22—Electric or magnetic using electromagnets for releasing a normally applied brake
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H25/00—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms
    • F16H25/18—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms for conveying or interconverting oscillating or reciprocating motions
    • F16H25/20—Screw mechanisms
    • F16H25/22—Screw mechanisms with balls, rollers, or similar members between the co-operating parts; Elements essential to the use of such members
    • F16H25/2204—Screw mechanisms with balls, rollers, or similar members between the co-operating parts; Elements essential to the use of such members with balls
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T50/00—Aeronautics or air transport
    • Y02T50/60—Efficient propulsion technologies, e.g. for aircraft

Definitions

  • the present invention relates to the field of aviation actuators, and more particularly lockable thrust reverser actuators for jets, and more particularly for turbojets.
  • the nacelle of the turbojet is provided with movable surfaces that can be deployed so as to cause a portion of the gas stream produced by the turbojet to be sent back towards the front.
  • Deploying movable surfaces serves in particular to reduce distances required for landing.
  • Each movable surface is deployed by means of an actuator and includes a main locking device having redundant locks for connecting the movable surface to the nacelle in order to avoid any accidental deployment of the movable surface.
  • movable surfaces are deployed by means of hydraulic actuators, which have the advantage of remaining in position so long as the pressure in the chambers of the actuator remain the same.
  • Proposals have been made to equip thrust reversers with electrical actuators that replace hydraulic actuators.
  • Such an electrical actuator comprises a body and an electric motor for driving a ball screw in rotation.
  • the ball screw comprises a screw mounted on the body to pivot and a nut engaged on the screw.
  • the nut is provided with connection means connecting it to the movable surface and it can move from a retracted first position in which the movable surface is closed to a deployed second position in which the movable surface deflects at least a portion of the stream from the jet.
  • the actuators for a movable surface can also adopt an “over-retracted” third position that is reached after moving along a retraction overtravel.
  • the nut When the nut is in its over-retracted third position, it holds the movable surface beyond its retracted position, the movable surface then lightly compressing the gaskets of the nacelle that co-operate with the movable surface, thereby enabling the locks of the main locking device (also known as a primary lock system (PLS)) to be disengaged so as to enable subsequent deployment of the movable surface.
  • PLS primary lock system
  • An object of the invention is to reduce the weight and the size of a device for locking an element moved by an electromechanical actuator.
  • a lockable actuator comprising a body, a screw mounted on the body to pivot relative to the body about a longitudinal axis, and a nut provided with connection means for connection to an element for moving and engaged on the screw so as to move along the screw between an over-retracted first position and a deployed second position on opposite sides of a retracted third position.
  • the actuator also comprises a sleeve constrained to rotate with the screw and slidably mounted thereon in order to be moved by the nut.
  • the actuator also comprises an obstacle secured to the sleeve and a pawl that is mounted to move on the body and that is connected to a declutching actuator in order to control the pawl to take up an active state and an inactive state, the pawl having a blocking portion for co-operating with the obstacle in order to block turning of the screw in a first direction of rotation when the pawl is in its active state.
  • the pawl and the obstacle are arranged in such a manner that the pawl in its active state can co-operate with the obstacle only after the nut has been moved through a predetermined distance from its third position towards its second position.
  • the passive safety of the actuator is improved when the declutching actuator has means for returning it to its active state in the event of the declutching actuator not being powered.
  • the declutching actuator comprises an electromagnet.
  • the screw includes an abutment limiting movement in translation of the sleeve.
  • the actuator includes return means for returning the sleeve into position.
  • these return means comprise a helical spring.
  • the sleeve, the pawl, and the declutching actuator are arranged so as to allow the nut to move freely from a position lying between the deployed second position and the retracted third position towards the retracted third position, and to enable the pawl to be automatically in its active state when the nut passes to its retracted third position without any need to power the declutching actuator.
  • FIG. 1 is a diagrammatic perspective view of a nacelle provided with an actuator of the invention
  • FIG. 3 is a diagrammatic section view of the actuator of the invention in the over-retracted position
  • FIG. 4 is a diagrammatic section view of the actuator of the invention in the retracted position
  • FIG. 6 is a fragmentary detail view in perspective of the actuator of the invention in a blocking configuration
  • FIGS. 7 a , 7 b , and 7 c are fragmentary diagrammatic views in section of the actuator of the invention in remarkable configurations;
  • FIG. 8 is a fragmentary detail view in perspective of the actuator of the invention in a first particular configuration
  • FIGS. 8 to 12 are fragmentary diagrammatic detail views in perspective of the actuator of the invention in particular configurations
  • FIGS. 14 and 15 are detail views in perspective of a declutching device of the actuator of the invention.
  • FIG. 16 is a detail view in perspective of a second embodiment of the declutching device of the actuator of the invention.
  • FIG. 17 is a diagrammatic perspective view of an embodiment of a sleeve in a third embodiment of an actuator of the invention.
  • FIG. 18 is a fragmentary diagrammatic cross-section view of the third embodiment of the invention in a first configuration.
  • FIG. 19 is a view identical to the view of FIG. 18 , in a second configuration.
  • the lockable actuator of the invention comprises an extension tube 2 having a first end 3 with a ball clevis 4 connected to a movable surface 5 of a thrust reverser 6 of a turbojet nacelle 7 .
  • the body 8 of the actuator 1 comprises a universal joint 9 hinging the actuator 1 to the turbojet nacelle 7 and a sheath 8 . 1 in which the extension tube 2 slides between an over-retracted first position (shown in FIG. 3 ) and a deployed second position (shown in FIG. 5 ).
  • FIG. 4 shows a retracted third position situated between the over-retracted first position of FIG. 3 and the deployed second position of FIG. 5 .
  • the actuator 1 is connected to a motor 10 by a coupling flange 11 secured to a bevel gear 12 meshing with a bevel gear 13 .
  • a fluted first end 14 of a tubular ball screw 15 of pitch p is mounted in a grooved central bore 16 of the gear 13 .
  • the screw 15 extends along a longitudinal axis Oy and possesses a second end 17 provided with a ferrule 18 co-operating with the inside of the extension tube 2 in order to guide sliding along the longitudinal axis Oy.
  • a ball nut 19 is engaged on the screw 15 .
  • a first groove 20 made in the outside face 21 of the nut 19 receives a key 22 that co-operates with a second groove 23 of the sheath 8 . 1 , thereby preventing the nut 19 from turning relative to the screw 15 .
  • the nut 19 is also connected by a claw 24 connecting it to a second end 25 of the extension tube 2 .
  • the screw 15 is rotatably mounted on the body 8 by a bearing 26 .
  • rotation of the screw 15 in a first direction serves to move the nut 19 on the screw 15 between an over-retracted first position of the nut 19 and a deployed second position of the nut 19 that are located on either side of a retracted third position of the nut 19 .
  • the first, second, and third positions of the nut correspond respectively to the over-retracted first position of the extension tube 2 (shown in FIG. 3 ), to the deployed second position of the extension tube 2 (shown in FIG. 5 ), and to the retracted third position of the extension tube 2 (shown in FIG. 4 ).
  • the distance between the over-retracted first position of the nut 19 and the retracted third position of the nut 19 is referred to as retracted overtravel and is written C over .
  • the actuator 1 has a cylindrical sleeve 30 with an inside bore 31 having a smooth portion 31 . 1 and a grooved portion 31 . 2 for co-operating with fluting 27 of a portion 28 of the first end 14 of the screw 15 .
  • the smooth portion 31 . 1 and the grooved portion 31 . 2 of the sleeve are separated from each other by an inside shoulder 31 . 3 .
  • the sleeve 30 is thus constrained to rotate with the screw 15 and it can slide on the screw over a total stroke L that is defined firstly by the body 8 of the actuator 1 and secondly by an annular abutment 29 of the screw 15 .
  • a helical compression spring 32 extends between the body 8 and a first end 33 of the sleeve 30 and pushes the sleeve 30 towards the second end 17 of the screw 15 until the shoulder 31 . 3 comes into contact with the abutment 29 .
  • This position is shown in FIG. 8 and it is adopted by the sleeve 30 when the nut 19 is between its retracted third position and its deployed second position.
  • the second end 34 of the sleeve 30 has an annular shoulder 35 against which an end 19 . 1 of the nut 19 can come to bear.
  • An obstacle in this example in the form of a tooth 36 , is secured to the sleeve 30 and projects radially therefrom.
  • the tooth 36 has a first blocking face 37 having a width l 37 and that extends in a plane containing the longitudinal axis Oy, and it has an escape second face 38 that is curved.
  • the axis of the tooth 36 lies at a distance d 1 from the shoulder 35 and at a distance d 2 from the first end 33 of the sleeve 30 .
  • the actuator 1 has a pawl 40 constrained to rotate with the first end 41 . 1 of a shaft 41 extending parallel to the longitudinal axis Oy and passing through an electromagnet 42 .
  • the second end 41 . 2 of the shaft 41 has a grooved bushing 50 of structure that is described below.
  • a position return device in this example a spring blade (not shown), brings the pawl 40 into an active position in which a blocking portion 43 situated at the first end 44 of the pawl 40 comes into contact with the sleeve 30 ( FIGS. 6 to 8 ), (in this example the blocking portion 43 is of width l 43 that is substantially equal to the width l 37 of the first blocking face 37 ).
  • the blocking portion 43 can co-operate with the blocking first face 37 of the tooth 36 and block rotation of the sleeve 30 (and thus of the screw 15 ) in the first direction of rotation I ( FIG. 7 b ).
  • the respective midplanes of the blocking portion 43 of the pawl and of the blocking first face 37 of the tooth 36 are in alignment.
  • This position for blocking the sleeve 30 (corresponding to a blocking fourth position of the nut 19 ) is reached ( FIG. 7 b ) after the sleeve 30 has moved along a first portion of the stroke C 1 from the position it occupies when the nut 19 is in its over-retracted second position ( FIG. 3 and FIG. 7 c ).
  • the sleeve 30 then moves along a second stroke portion C 2 before coming against the annular abutment 29 of the screw 15 ( FIG. 7 a ).
  • the total stroke L of the sleeve 30 is thus equal to the sum of the first stroke portion C 1 plus the second stroke portion C 2 .
  • the distances d 1 and d 2 , the first and second stroke portions C 1 and C 2 of the sleeve 30 on the screw 15 , and also the respective widths l 37 and l 43 of the blocking face 37 and of the blocking portion 43 of the pawl 40 are selected as a function of the pitch p of the screw 15 , of the retracted overtravel C over of the nut 19 , and of a predetermined distance j lock so that the pawl in its active state can co-operate with the tooth 36 only after the nut 19 has been moved through the predetermined distance j lock from its third position towards its second position.
  • the predetermined distance j lock corresponds to functional locking clearance that is necessary for establishing second locking when the main locking device for the movable surface 5 is locked.
  • the nut 19 (and thus the movable surface 5 ) is initially in its retracted third position as shown in FIG. 4 and the pawl 40 is in an active state.
  • the blocking surface 37 of the tooth 36 is spaced apart from the blocking portion 43 of the pawl 40 by an angular sector A lock equal to (j lock /P).
  • the electromagnet 42 is powered so the pawl 40 moves into its inactive state.
  • the motor 10 is operated so as to turn the screw 15 in the second direction of rotation II so as to bring the nut 19 towards its over-retracted first position.
  • the pawl 40 is inactive and leaves the sleeve 30 and thus the screw 15 free to rotate.
  • the nut 19 is taken from its retracted third position towards its over-retracted first position. During this movement, the end 19 . 1 of the nut 19 comes to bear against the shoulder 35 and moves the sleeve 30 against the force from the spring 32 . The locks of the main locking device for the movable surface 5 are then caused to disengage. Once these locks have disengaged, the motor 10 is operated to turn the screw 15 in the first direction of rotation I until the nut reaches its deployed second position corresponding to the movable surface 5 being fully open. During this movement, the shoulder 31 . 3 of the sleeve 30 comes against the abutment 29 of the screw 15 and the end 19 .
  • the blocking portion 43 leaves the sleeve 30 (and thus the screw 15 ) free to rotate and remains in contact with the sleeve 30 without being lifted by the escape face 38 of the tooth 36 , thereby limiting wear of the parts associated with the pawl 40 .
  • the end 19 . 1 of the nut 19 comes into contact with the shoulder 35 of the sleeve 30 .
  • the nut 19 moves the sleeve 30 against the force of the spring 32 , and the escape surface 37 of the tooth 36 lifts the blocking portion 43 of the pawl 40 ( FIG. 11 ), thereby leaving the screw 15 free to turn in the direction II.
  • the locks of the main locking device for the movable surface 5 are caused to engage.
  • the motor 10 is then operated so as to turn the screw 15 in the first direction of rotation I so that the nut 19 goes from its over-retracted first position to its retracted third position shown in FIG. 9 .
  • the blocking portion 43 of the pawl 40 is spaced apart from the blocking face 37 of the tooth 36 by an angular sector A lock and by a longitudinal distance j lock .
  • the grooved bushing 50 is cylindrical in shape and includes at its center a shaft 51 having a first end 52 with an annular shoulder 53 having a square 54 projecting therefrom.
  • a helical compression spring 55 extends between the body 8 and the shoulder 53 .
  • the second end 56 of the shaft 51 has a dog 57 facing a corresponding opening 41 . 3 formed in the second end 41 . 2 of the shaft 41 .
  • the bushing 50 has a bayonet groove with a first segment 61 extending parallel to the longitudinal axis Oy and opening out onto a top surface 58 of the bushing 50 .
  • This first segment 61 also opens out into a radial second segment 62 having its end opening out into a blind third segment 63 that is parallel to the first segment 61 .
  • the bushing 50 is for co-operating with a key 70 having an end 71 with a cylindrical portion 72 of outside diameter 73 that is substantially less than the inside diameter of the bushing 50 .
  • the end 71 of the key 70 has a square socket 74 for co-operating with the square 54 .
  • a stud 75 projects radially from the cylindrical portion 72 .
  • the end 71 of the key 70 is inserted into the bushing 50 so that the stud 75 is engaged in the first segment 61 of the groove 60 .
  • the key is then pushed so that the stud 75 enters into the radial second segment 62 of the groove 60 .
  • the dog 57 becomes engaged in the opening 41 . 3 at the same time as the square 54 becomes engaged in the square socket 74 .
  • the key 70 is then constrained via the shaft 51 to rotate with the shaft 41 .
  • the key 70 is then turned until the stud 75 faces the blind third segment 63 . This movement of the key 70 causes the shaft 41 to turn, thereby bringing the pawl 40 into its inactive position.
  • the key 70 is then released and the stud 75 comes into abutment against the end of the blind third segment 63 , thereby blocking the key 70 and preventing it from being withdrawn.
  • the second end 56 of the shaft 51 has a finger 80 facing a paddle 82 extending radially from the second end 41 . 2 of the shaft 41 .
  • the end 71 of the key 70 is inserted into the bushing 50 so that the stud 75 is engaged in the first segment 61 of the groove 60 .
  • the key 70 is then pushed so that the stud 75 enters the radial second segment 62 of the groove 60 .
  • the finger 80 moves the paddle 82 of the shaft 41 , thereby bringing the pawl 40 into its inactive position.
  • the key 70 is then turned until the stud faces the blind third segment 63 .
  • the key 70 is then released and the stud 75 comes into abutment against the end of the blind third segment 63 , thereby blocking the key 70 and preventing it from being withdrawn.
  • the first portion 101 of the sleeve 30 situated between the first end 33 of the sleeve 30 , and the transverse face 102 of the tooth 36 that faces the first end 33 of the sleeve 30 has an outside diameter D 101 that is less than the outside diameter D 103 of the second portion 103 of the sleeve 30 that extends between the transverse face 102 of the tooth 36 and the second end 34 of the sleeve 30 .
  • the pawl 40 has an abutment portion 45 situated at its second end 46 remote from the first end 44 of the pawl 40 .
  • This abutment portion 45 is arranged to be capable of coming into contact with an abutment 8 . 2 secured to the body 8 when the pawl 40 is in its active position.
  • the abutment position 8 . 2 and the diameters D 101 and D 103 are selected in such a manner that, with the pawl 40 being in its active position:

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Transmission Devices (AREA)
  • Superstructure Of Vehicle (AREA)
  • Lock And Its Accessories (AREA)
US16/491,114 2017-03-06 2018-02-23 Cylinder with integrated locking Active US10605199B2 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FR1751772A FR3063527B1 (fr) 2017-03-06 2017-03-06 Verin a verrouillage integre
FR1751772 2017-03-06
PCT/EP2018/054574 WO2018162259A1 (fr) 2017-03-06 2018-02-23 Verin a verrouillage integre

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US20200018259A1 US20200018259A1 (en) 2020-01-16
US10605199B2 true US10605199B2 (en) 2020-03-31

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US16/491,114 Active US10605199B2 (en) 2017-03-06 2018-02-23 Cylinder with integrated locking

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US (1) US10605199B2 (fr)
EP (1) EP3593011B1 (fr)
CN (1) CN110366650B (fr)
FR (1) FR3063527B1 (fr)
WO (1) WO2018162259A1 (fr)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3762629B1 (fr) * 2018-03-08 2023-11-29 Linak A/S Actionneur linéaire
CN110608139A (zh) * 2019-11-07 2019-12-24 国电联合动力技术(保定)有限公司 一种机舱罩吊物孔盖固定结构
CN111674352B (zh) * 2020-04-15 2022-11-25 河北东方久乐瑞丰汽车安全部件有限公司 一种汽车前罩盖自动抬升系统的触发器
JP2022154362A (ja) * 2021-03-30 2022-10-13 本田技研工業株式会社 サスペンション装置

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Publication number Priority date Publication date Assignee Title
US5448884A (en) * 1992-09-21 1995-09-12 The Boeing Company Mechanical lock for jet engine thrust reverser
US20030066284A1 (en) 2001-09-07 2003-04-10 Chakkera Kevin K. Thrust reverser actuator with an automatic relock and lock drop prevention mechanism
FR2989740A1 (fr) 2012-04-23 2013-10-25 Sagem Defense Securite Dispositif d'actionnement pour deplacer un capot mobile d'un inverseur de poussee
WO2014147247A1 (fr) 2013-03-22 2014-09-25 Sagem Defense Securite Dispositif d'actionnement pour deplacer un capot mobile d'un inverseur de poussee
US20170292474A1 (en) * 2016-04-08 2017-10-12 Goodrich Actuation Systems Limited Thrust reverser actuator

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GB0618572D0 (en) * 2006-09-21 2006-11-01 Goodrich Actuation Systems Ltd Actuator
EP2520829B1 (fr) * 2010-04-26 2016-03-02 NSK Ltd. Actionneur linéaire
US9188081B2 (en) * 2012-04-10 2015-11-17 Honeywell International Inc. Thrust reverser actuator with primary lock
FR2989739B1 (fr) * 2012-04-23 2016-01-08 Sagem Defense Securite Dispositif d'actionnement pour deplacer un inverseur de poussee
US9109536B2 (en) * 2013-03-14 2015-08-18 Woodward Hrt, Inc. Engine thrust reverser lock
FR3012532B1 (fr) * 2013-10-24 2015-11-20 Sagem Defense Securite Dispositif d'actionnement pour deplacer un capot mobile d'un inverseur de poussee
DE102014219256B4 (de) * 2014-09-24 2016-05-04 Schaeffler Technologies AG & Co. KG Kugelgewindetrieb

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5448884A (en) * 1992-09-21 1995-09-12 The Boeing Company Mechanical lock for jet engine thrust reverser
US20030066284A1 (en) 2001-09-07 2003-04-10 Chakkera Kevin K. Thrust reverser actuator with an automatic relock and lock drop prevention mechanism
FR2989740A1 (fr) 2012-04-23 2013-10-25 Sagem Defense Securite Dispositif d'actionnement pour deplacer un capot mobile d'un inverseur de poussee
WO2014147247A1 (fr) 2013-03-22 2014-09-25 Sagem Defense Securite Dispositif d'actionnement pour deplacer un capot mobile d'un inverseur de poussee
US20170292474A1 (en) * 2016-04-08 2017-10-12 Goodrich Actuation Systems Limited Thrust reverser actuator

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Publication number Publication date
CN110366650A (zh) 2019-10-22
EP3593011A1 (fr) 2020-01-15
EP3593011B1 (fr) 2021-05-26
WO2018162259A1 (fr) 2018-09-13
FR3063527B1 (fr) 2019-04-05
CN110366650B (zh) 2020-08-21
FR3063527A1 (fr) 2018-09-07
US20200018259A1 (en) 2020-01-16

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